Templet.



H. ALLEN.

TEMPLET.

nrucmou FILED mac. 1-; 191 4.

Patented Aug. 14, 1917.

was

IL-III INVENTOR WITNESSES OI PITTSBUBGH, PENNSYLVANIA- rmmr.

inclination of Letter! Patent.

Patented Aug. 14, 191i.

u uoauoama December 1, 1014. Serial in. "am.

To all whomitm'a concern; a

, it n n, W Hum AW a resident of Pittsburgh, an" the county] of Meghan mils-tats 9$; gm w w 6 invented a new and useful I proyement 1n fremplets; of which the jollow ng s a specifi ation, p

I Th's inventi n r te t9. .J gs rtem 'te' m nim m pjf e qmi fskm r IO thBK-fiiiEPOSe or g or d recting a tool which is-to perorm certain operations on Sa d werk, to the rgzgfiimd; Plac or plac s .on $1M work where operations are to be p ner d- 5 The object oi the invention s toprov de a jig or t' ui let 'for'thispurpose which is of si plest; cheap. cnstruction, which can be quicklyapfi'liedto the work and removed h m-rem.) 1w "ch? i separa ely guide o s' ot or spots hereitliewo 'k 8 te ,e rmee. and hi h. is-"e ed l a re .In i

' he e,- duplicate the 9118mm, o gthe tools.

' use templets o'r ],1gS

tofolf'e conrs u hl ii aee WP-ee s fis fructefi'ivh ""rjl; p ,anen lna T r .et mt M a0 jsi ich htYe'lie Iin o fu thos eeses-th y wave 6 ery. lgnind'eea smea s w very c mas m: d n. We immedof d. expensive, feme elk construction and so arranged that it can be very readily applied to and removed from the work.

The invention comprises a jig or templet constructed and arranged as hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a lan view of one form of templet embodyl'ng the invention; Fig. 2 is a longitudinal section therethrough on the line 22, Fig. 1; Fig. 3 is a section through one of the bushings showing the same on an en larged scale; Fig. 4 is a similar view showing a modified form of bushin Fig. 5 is a similar View showing another orm of bushing applied to a wooden body; Fig. 6 is a plan view and Fig. 7 a side elevation of a suitable form of clamp; and Fig. 8 is a perspective view of a suitable form of gage.

The im roved jig or templet has a body 1 formed 0 some cheap, li ht. and inexpensive material, not of sufiicie ty durable nature in itself to, withstand'repeated action of tools, such as punches, drills or the like. Preferably, this body will be formed of thick, tou h'pa er or light plasteboard, or it may be orme of thin sheet rnetal, or-wood. In Figs. 1, 2, 3 and4 it is shown formed of some-thin material, such as tough aper or thin sheet metal, while in Fig. 5 it 13 shown as a thicker body 1 of wood orthe like. In all forms it is essentially a plate, but it need not lie 'in'a single planefas it may be'suitably shaped in any way to conform tothe i shape of the article to which it is to beattached and-may be curved or have portions 1 lying in different planes, as desired. While this-plate ma be formed of very durable ,material, yet or the sake of'cheapnessand 'flightness it is i the materialsa eiently durable to withstand repeated actions ,o f'the tools.

body may be such as has'heretofore been 'referably' ,formed of one of ove named which is not sufii Indeed, the material of the used for such templets as have been used exclusively for center punching or marking the places on which the tool isto operate.

Suitable durable tool guiding and directing means are secured to this relatively destructible body in order to make the templet orjig capable of repeated 'usefor "ding or directing the tool. tool and directing'means are "shown int 0 form of bushings 2,--wl 1ich may .be' variously formed ion the hole will be cut and which will be secured to the body of the templet at such points as the tool is to operate upon the work. As shown in Figs. 1 and 2, the bushings are pressed from plate metal "having the central portion with a substantially cylindrical portion 3 for the purpose of supporting the tool in central position, and having outside of the same a flaring portion 4 for the purpose of guiding the tool into the central position, and having the metal then carried outwardly, as at 5, and then downwardly as at 6, with an outturn'ed flange 7 at its lower face, adapted to rest upon the body 1 of the templet and provided with openings through t 1e flange for receiving suitable means for securin it to the body of the templet. As shown, t e base of the bushing. is substantially square and provided at each corner with a hole 8 for receiving a screw, or the like. In case the body of. the templet is thick. pa er or thin pasteboard, or thin sheet meta t e securing means may be a rivet, such as the split rivet shown at 9. The portions 3 and 4 of the ferrule will have their surfaces suitably hardened so as to withstand wear, and therefore form a very permanent means for guidi and supporting the tool while working. ii 4 shows another form of ferrule having t e outward flarin su stantially cylindrica portion 5 and'having its lower edge flanged outwardl as at 7" andq'esting upon and secured to t e body of the templet by rivets 9'.

In case the bod of the tem let is of wood the ferrule will I of the f rm shown in Fig. 5, and extending substantially through the bod with the c indrical portion 3", and upwar y thereof t e flaring portion 4", and having the flange 7" at its u per edge and resting on the top surface of t e body of the templet and secured thereto by screws 9".

When the body of the templet is of thin material, such as paper, asteboard or thin sheet metal, no holes need be cut through the body thereof, but the bushings will be fastened thereto'at the proper positions, and through the templet upon the first ap lication of the tool. In case of a wooden ody, however, it is necessaryto first cut holes through the body at the proper points and then secure the bushingsin such holes.

The bushings described are of very 'ple construction, and are very readily attached to the bod by merely nailin riveting or screwing the same thereon. 'ey can be spaced in any proper relations with reference to each other, as desired for the necessary work, and the entire construction is very cheap, light, and nevertheless durable, as the bushings are the only parts that are subjected to wear.

In order to facilitate the ready placing of the templet on the work-in proper position simportion 4 and the means one or more suitable gages are preferably secured to suitable points on the body, one bemg shown at a corner thereof, as at 10, and comprising a member having downwardly prO ecting flanges or walls 11 and 12 at suitable angles to each other and adapted to engage, for instance, over the corner of a plate or other iece of work to be 0 erated upon, and whic will accurately position the templet on the work.

Tohold the templet firmly in position on the work while the tools are operating, and prevent its accidental displacement the templet is also provided with oneor more suitable clamps, shown enerall at 14 and preferably secured to the templet on the side opposite the gage 10, althou 11 they may be secured wherever desired. his clamp may be of various constructions, that shown comprising a body or base portion 15 secured to the body of the tem let by suitable means, such as split or solid rivets 15, and having pivoted thereon at 16 the lever 17, which at its outer end is threaded and engaged by the threaded portion 18 of the clamping member 19 which is arranged to extend underneath the plate or other piece of work 20 and eng the latter. The free end of lever 17 has fu crumed thereto at 21 a cam 22 by means of which the clamp 19 can be drawn into engagement with the work 20 or disen gaged therefrom. The threaded connection at 18 enables the clamping member 19 to be adjusted to ada t it to fi of diflerent thi ess.

The templet may also be used for markin working outlines upon an article, in which case it is given the required shape and its edges 23 are used for guidin a marking tool or other instrument. For t is purpose the bushings are not essential but the clamps and gages are attached to thebody and are used in the same manner before described;

The templet described is of simpleand cheap construction, and yet is durable so rmly engage work that it can be repeatedly used as 'a guide and support for the tool, and not merelyfor center punching or mark the work. It can be very quickly adjuste in-position on the work, with its several bushings accuratel located, and can be very readily removed. t is much lighter, and ess complicated than permanent te-m lets and jigs as heretofore constructed, an is equally as durable.

- It'will be understood that the bod of the templet can be made of any suitab e material, even metal, but when made of metal will not be of a strength suflicient to withstand repeated applications of the tool. By the expression material adapted to be readily enetrated by the tool metal, which while it is suflicient is not sufliciently stron or duas used in the claims ereafter is meant any material, even thou h' ,rable to preventv the material aroun the holes nae-7,14:

from bein quickly deformed by the tool so pressed to provide an inner annular tool supthat it wi no longer act as a tool guide and porting opening and an outwardly flaring support. tool gfililding portion and hav' one edge What I claim is: exben outwardly to form a an rest- 5 1. A templet or jig, com ri a plate mg on e surface of the plate bo y, and 20 body of'material ada ted to o re ily peneineans extend through said flanges and trated by the tool to guided, and metallic Int the body or securing the bushings 1n tool guiding and supporting bushintgs seplace. cured to an imperforate portion 0 said In testimony whereof, I have hereunto set 10 pluteAbody. l I thm my hand.

2. temp et or jig, comprising a I plate body of material adapted to be readily HARVEY ALLEN penetrated b the tool, and tool support- Witn: mg and bushings secured thereto Annnn'r C. Rormmn, 15 said bushings being formed of plate metal Emnn'r L. Hron. 

